The expectant mother headed to St. Charles Hospital in Port Jefferson, where her two other children were born. When the ambulance encountered another roadblock -- abandoned vehicles and drifts -- snowplows stepped in to "clear a path," Nichole Perretta said.

She made it to St. Charles in time, but the doctor was late because of his own snow-related traffic woes.

With the help of nurses, the delivery began. Just as the baby crowned, the doctor stepped in to finish the job.

The Perrettas' daughter, Harper, was born at 11:35 a.m., weighing 7 pounds, 4 ounces. Both mother and daughter were doing well Saturday night.

"It's nice to have another young one," the relieved father said. "It's still kind of new. It's hitting me all at once."